Boiler.



M. STODDARD.

BOILER.

APPLICATION FILED mm. 1915.

1,149,303. P Patented Aug. 10, 1915.

"nay/211111 11111 COLUMBIA PLANOGRAPH CO.,WASHINGTON, D. c.

Attorneys.

' 1 MERCHANT szronnnnn, or orrnimtrsywnsmneron;

BOILER.

ToaZZ whom it may concern:

Be it'known that I, MERCHANT S'ronn'Ann, a citizen of the UnitedjStates. residingat Chehalis, in thecounty of Lewis and State of Vashington, have invented a new and useful. Boiler, of which the following'is a specification. d

The present invention appertains to boilers, and aims to provide a boiler having novel and improved steam generating means, whereby the steam may be generated quickly and in comparatively large quantities within a short time. a It is also withinithe' scopeof the invention to provide a boiler embodying a unique assemblage of the component parts, whereby the utility of the boiler is enhanced, and whereby the structure is comparatively simple and inexpensive, may be readily separated for purpose of cleaning, repair or replacement, and will bethoroughly efficient and practical in use. a

l/Vith the foregoing and other objects in view, which will appear thedescription proceeds, the invention resides in the combination and arr: ngement of parts and in the details of construction" hereinafter described and claimed, it being understood.

that changes in the precise embodiment of the invention herein disclosed can" be made within the scope of what is claimed without p departing from the spirit of the invention.

away. Fig. 4 is an enlarged sectional de-' tail illustrating one of the water nozzles and accompanying parts. p

In carrying out the 1nvent1on,.theboiler comprises a casing lof brickwork or other suitable material, and inclosing the combusf tion chamber 2. 1A suitable grate 3 is supported within the casingl for supporting the coals, and an ash pit & isprovided below the grate 3. The front "ori'forward end of the casing 1 is provided with fuel and ash doors 5 and 6 above and below the grate, respectively. I

The steam generatingmeans embodies a plurality of pipes,rof which there may be any suitable number, according to the capacity of the boiler, and each of these pipes embodies a series orset of vertically spaced parallel'longitudinal pipe sections 7 which.

have their ends engaged through the front and rear ends ofthe casing 1 and which have their ends connected by U-c'ouplings 8 Specification of Letters Patent. Patented A g. 10, 1915 7 Application filed Apri12, 1915." SeriaINo. 18,755..

located upon the exterior of the ends of the casing. ,The upper or inlet pipe sections 7 of the steam genera-ting pipes have their forward ends extending through the front end ofvthe casing 1, and caps 9 are threaded upon the said ends of the upper or inletpipe sections 7. The lower or discharge pipe sec.- tions '7 have theirforward ends projecting through the front end of the casing and T- couplings 10 have their arms or branches threaded upon the said ends of the lower pipe sections "7, and the ends'of the couplings" 10 areconnected by pipe sections 11. The couplings 10Jand pipe sections 11 cooperate to provide a transverse steamchamtransverse steam pipe or chamber. The pipe 13 is connected to a, water "tank or reservoir 14 located in rear "or above the boiler, whereby the water will be delivered by gravity, as hereinafter set forth ,to the'steam generating pipes. The pipe 13 is connected to the tank or reservoir 11'above the water level therein, and'the water level is slightly above the upper pipe sections 7. That end of the transverse steam chamber or-pipe 10-11 to which the pipe 13 is, connected, is preferably provided with a depending branch 15 having a valve 16." A pipe 17 extends from the upper portion, of t'he'tank or reservoir 141- to allow the steam tojbe-conveyed to the engine, radiators, or other device or devices utilizing the steam.- 1

The water supplying means includes an inclined pipe 18 having its lower end attached'to the lower-"portion of the tank or reservoir 1 1, andTth'e pipe 18 extends throughthe combustion chamber 2 'offthe casing 1, and out throughthe front end of the casing. The forward end-"or the. pipe 18 is provided with a' transverse portion 19 disposedabove the couplings 10 and pipe sections 11, and'having T-couplings 20int'erposed therein. Pipe section's21 are engaged to the upstanding arms or branches of the couplings 20, and elbows 22 are connected to the upper ends of the pipe sections 21. Nozzles 23 are connected to the elbows 2 2, and 'are'threaded or otherwise engaged through the caps 9 to project into the inlet ends of" the upperpipe sections 7 The nozzles: 23 each embodies a pairof sections connected by a union 24: whichallow'sfthe V nozzle sections to be separated'when desiredfi; The water pipe; l8is provided with w a controlling valve 25, andwi'th a' discharge,

valve 26.

"Inoperation, after the fire is lighted with- ;in lthe combustion chamber 2, the -,controlling "valve 25 is openedto allow the water to flow glfrorn the-tank or reservoir. 14 into the upper pipe sections 7 of the steam generating pipes, the water flowing from the portion 19. of thepipe 18 up through the pipe sections 21 back andiforth through the pipe sections 7 Within, the combustion chamber so that the remaining water will .be generated into steam, and the steam: will be super-heated inthe lowerpipe sections 7.] The steam will 'tlienbe discharged from the lower pipe sections into the-couplings .10 and throughthe said couplingsandipipe .sections'lltto the steam pipe-13. From the pipe 13v steam is dischargedintolthe tank or reservoir 14, to create apressure on the water. The steam maybe drawnirom the tank orreservoir 141 through the pipe 17, or the steam niay be takeng fromthe'branch 15 of the pipe 13. The nozzles 23 inject the water injets or streams-into the upper pipe sections 7, and the Water Will be heated quickly within the pipe sectionsf'z. The back lpress ure of the steam generated;withinjthe pipe sectiens 7 upon the Water will" be equalized, sinceithe discharge ends of. the steam generating pipes are connected by 'means of the jpipe 13 to, theltank orreservoir 14 abovethe surface of thewater. Consequently, the steam will not force the water back into thetank,

but will force the water into 'the boiler, as-

of water may beregulated by the valve25 sisted by the gravitation of the Water whenthe controlling valve 25=is-opened Theflow according to; the amount of steam desired.

Steam mayalsojbe drawn from the valve'112, g

V Witnesses: o

. and'the' said; valve isalso useful since when the boiler is idle, the valve 12 maybe opened i ori removed to enable the couplings 10 and v rior thereof.

I be burnt out.

is claimed as newise pipesections 11 to be examined onthe inte- It will be noted that I the pipe sections have their joints or connections located on the outsideof the boiler casing, in order that the joints may be readily examined, and whereby leaks can be quickly detected. Furthermore, the pipe sections '7 may be readily'removed andreplaced should they Thus, to ,l-GIDOVG the upper pipe sections 7, thesectionsofthe nozzles 23 are separated'by unscrewing lthe' unions 24, and the pipe sections 21 may then be swung forwardly and downwardly with the Tf couplings 20. The capsf may thenbe readily "unscrei'vc'd froni the upper pipe secti-ons 7 and the upper pipe sections may then be unscrewed from the respective rear U -couplings '8. The said Ui-couplingsfi may then be unscrewed from the second pipe secti ons 7 to enable the said pipe sections to be unscrewed from the front U-couplings 8.

This may be continued until all thepipe sections 7 are detached, 'so'that they can be readily withdrawniromthecasing and replaced. In-thelsame manner, thenfront and rearends of the pipe sections 7 may be 7 opened for purposeof examination or re- Having thus descrlbed the invent on, what A boiler comprising a casing,

sections their ends extending through the casing, and couplings fconnectlng the H a plurality-v v i ofastea m generating pipes therein and each compris ng agserieso'l' vertically, space'd'pipe pipe connectedto the ends'Tofthe lower pipe sections outsideof the cas1ng,' caps engaged to t-he' 'ends ot thefupper pipe sectionsjupon the exterior of th'e cas1ng,a watersupply pipe having a transverse portion uponthe V exterior of the'casing' and couplings adapted tobe swung, pipe sections connected to the mentioned pipe sections and projecting an- I gularly therefrom, the nozzles belng enr gagedthroughsaid caps and each; compris- 1' V in'gsections and a uniondetachably connecting them;v I

V testimonyl that l kclaimlthe "foregoing as my own, 1 havehereto aifiiied my 's gna-f ,ture in theprsenceoftwo witnesses.

1}. i MERC N sronnaen:

J. 13.. Knesse F. H. Swavnni v Copies.oftnislpatentmay be obtained for five cents each, by addressing the Commissioner of latnts,

' Washinggrtdn,1).;(3.? 7

f ends of said pipe sections, a steam discharge I 

